| Boone to Smyrna (Delaware) | 393.44 mi (633.18 km) |
| Boone to Smyrna (Georgia) | 228.69 mi (368.03 km) |
| Boone to Smyrna (Tennessee) | 271.81 mi (437.44 km) |
| Boone to Snellville (Georgia) | 209.63 mi (337.37 km) |
| Boone to Snoqualmie (Washington) | 2,181.07 mi (3,510.10 km) |
| Boone to Snyder (Texas) | 1,120.62 mi (1,803.46 km) |
| Boone to Socastee (South Carolina) | 230.36 mi (370.73 km) |
| Boone to Socorro (Texas) | 1,440.74 mi (2,318.65 km) |
| Boone to Soddy-Daisy (Tennessee) | 207.43 mi (333.82 km) |
| Boone to Solana Beach (California) | 2,024.91 mi (3,258.77 km) |
| Boone to Soledad (California) | 2,192.65 mi (3,528.73 km) |
| Boone to Solon (Ohio) | 357.79 mi (575.81 km) |
| Boone to Somers Point (New Jersey) | 441.12 mi (709.92 km) |
| Boone to Somerset (Kentucky) | 173.96 mi (279.97 km) |
| Boone to Somerset (New Jersey) | 488.47 mi (786.11 km) |
